Cock and valve.



H. YUILL & M. FAVERO.

GOGK AND VALVE. APPLICATION FILED NOV. 12, 1909.

Patented Apr. 5, 1910.

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mmzzw a. GRANAM co PHDTO-LITHOGRAPHCRS. WASHINGTON an UNITED STATESPATENT OFFICE.

HARRY YUILL AND MATHEW FAVER-O, OF LONDON, ENGLAND.

COCK AND VALVE.

To all whom it may concern:

Be it known that we, HARRY YUILL, a subject of the King of GreatBritain, residing at New Broad Street House, Lon don, England, andMATHEW FAVERO, a subject of the King of Great Britain, residing at 109Wardo avenue, Fulham, London, England, have invented new and usefulImprovements in Cocks and Valves, of which the following is aspecification.

Our invention relates to cocks or valves, and especially to a cock ofthe kind provided with a plug which has arranged in conjunction with ita lever pivoted in a recess or slot in the plug and one end of which isdesigned to engage, under the action of a spring in a notch in the bodyof the cock, while the other end extends into proximity to the handle ofthe cock, and is adapted to' be moved toward the said handle when thehandle is grasped to move the plug. According to our invention, thislever is fitted into, and pivoted within a recess formed in the plug,and the end of the lever, which is designed to be pressed fordisengaging the lever from the notch in the body, is arranged oppositeto a hole or recess in the handle so that pressure upon the said leverto unlock the plug will cause it to enter the said hole or recess in thehandle. With this construction it will be understood that the lockinglever rojects very little beyond the surface of t 1e plug itself, sothat it does not form an unsightly addition to a cock and is not soliable to be injured as when it is arranged outside the face of theplug.

In practice we prefer to provide the plug with two locking leversarranged as here- 'inbefore described and pivoted upon a common pin, thefinger portions of the said levers being arranged opposite to each otherso that they will press back simultaneously into the same hole in thehandle. In the hole or recess in the handle the spring is arranged,which serves for causing the locking lever or levers to engage with thenotch or notches when the plug is in the closed position.

To enable our invention to be fully understood we will describe the sameby reference to the accompanying drawing, in which Figure 1 is asectional side view of a cock Specification of Letters Patent.

Application filed November 12, 1909.

Patented Apr. 5, 1910.

Serial No. 527,710.

provided with two locking levers in accordance with our invention. Fig.2 is an end view of the same, and Figs. 3 and 4c are views of the plugand the cock in positions at right angles to each other, Fig. 3 beingpartly in section. Figs. 5 and 6 are respectively a side view andan'underside view of the locking lever.

a indicates the body of the cock, and b the plug which is provided withthe handle 0, d, d are the locking levers arranged in ac cordance withour invention, the said levers being arranged in a slot 6 in the plug,as shown in Figs. 1 and 2, and mounted upon a common pivot pin f passingthrough the axis of the plug the oint portions 9 of the two levers beinghalved, as shown in Figs. 2 and 6. To allow of mounting them in thismanner these levers are at their locking ends adapted to engage innotches h, h formed in the flange 2' on the body of the cock, and attheir other ends are enlarged as at j to form finger or gripping piecesto allowthe levers being readily depressed, the said enlarged ends beingarranged over the slot Z in the handle, and adapted when pressedtogether to be moved back into the said slot, while at the same time thelocking ends are disengaged from the notches h, h. In the recess Zbetween the gripping pieces j, j a spring m is introduced, the saidspring normally serving to press the gripping pieces outward and thelocking ends toward one another so that when the plug is turned and thelocking ends are opposite the notches h, h, the said looking ends willspring into the notches and lock the plug. It will be noticed that bymounting both levers cl, d on a common pin the external surfaces of thesaid levers may be shaped so as to correspond with the shape of the neckof the plug, while at the same time leaving enough substance to give thenecessary strength and rigidity to the levers.

Although we have described a cock provided with two levers it will beobvious that a single lever may be employed if desired.

Having now particularly described and ascertained the nature of our saidinvention and in what manner the same is to be performed, we declarethat what we claim is In a cock plug, the combination with the plug, ofa pair of levers mounted upon a common pivot and located in recesses inthe plug, the said levers at one end being so constructed as to engageWith notches in the cock casing and at the other end shaped to 5 pushback into a recess in the handle of the plug, the said levers having aspring arranged between the ends to be pressed, and having theirexternal surfaces shaped to correspond With the external shape of theneck of the plug.

HARRY YUILL. MATHEXV FAVERO.

Vitnesses A. ALBUTT, H. D. JAMESON.

